Table Of Contents

PXIe-8522 Specifications

    Last Modified: December 11, 2019

    This document lists specifications for the PXIe-8522 4-port, 1000BASE-T1 PXI Automotive Ethernet interface module.


    Warranted specifications describe the performance of a model under stated operating conditions and are covered by the model warranty.

    Characteristics describe values that are relevant to the use of the model under stated operating conditions but are not covered by the model warranty.

    • Typical specifications describe the performance met by a majority of models.
    • Nominal specifications describe an attribute that is based on design, conformance testing, or supplemental testing.

    Specifications are Typical unless otherwise noted.


    Specifications are typical at 0 °C to 55 °C unless otherwise noted.


    The terminals or pins of this device are not protected from electromagnetic interference. As a result, this device may experience reduced measurement accuracy or other temporary performance degradation when connected cables are routed in an environment with radiated or conducted radio frequency electromagnetic interference.

    Bus Interface

    Form factor

    Gen 2 x4 PXI Express, specification rev 1.0 compliant

    Slot compatibility

    x1 [1] , x4, x8 and x16 PXI Express or PXI Express hybrid slots

    Power Requirements

    Voltage (V) Current (A), Maximum (Typical)
    +3.3 2.7 (2.2)
    +12 1.5 (1.0)

    Physical Characteristics

    Dimensions (not including connectors)

    16 cm x 10 cm (6.0 in. x 3.9 in.) 3U CompactPCI slot


    200 g (7.1 oz)


    4, 1000BASE-T1

    I/O connectors

    Weidmuller BLF 3.50, 3-position

    Spring terminal wiring

    Wire gauge

    0.14 mm2 (26 AWG) to 1.5 mm2 (16 AWG)

    Wire strip length

    8 mm (0.3 in.) of insulation stripped from the end


    0.14 mm2 (26 AWG) to 1.5 mm2 (16 AWG), 8 mm barrel length

    Connector securement

    Securement type

    Screw flanges provided

    Torque for screw flanges

    0.2 N · m to 0.25 N · m (1.8 lb · in. to 2.2 lb · in.)

    LED indicators

    1 Link/Activity LED and 1 Status LED for each port


    Refer to the PXIe-8522/8523 User Manual for additional information about I/O connectors and ferrules (included).

    Network Interface

    Port configuration

    2 Taps or 4 endpoints

    Tap latency

    5.55 µs (typical)


    IEEE 802.3 Raw Ethernet, TCP/IP, UDP/IP, AVB (IEEE 802.1Qav, AVTP), IEEE 802.1AS


    For information about using Taps and endpoints, refer to the PXIe-8522/8523 User Manual .

    Timing and Synchronization

    Network timekeeping

    Timing and synchronization protocol


    Network synchronization accuracy

    < 3 µs



    100 MHz, shared by all ports, disciplined by PXI_Clk10 if available


    x4 125 MHz, 1 per port, independently disciplined by an external grand master (port is configured as a slave) [2] or the local timebase (port is configured as a master)

    Trigger I/O source

    PXI_Trig <0:7>

    Trigger capability

    Timestamps [3]

    x4 Timestamps, one per port; each captures both local time and network time [4]


    Time triggers

    x4 Time triggers, one per port; generated from local time or network time


    x4 1 MHz, one per port; 50% duty cycle; each disciplined by network time

    x4 1 Hz PPS (pulse per second), one per port; 50% duty cycle; each disciplined by network time


    Clock outputs and time triggers can be exported on any PXI_Trig<0:7>.

    Environmental Guidelines


    Indoor use only.

    Environmental Characteristics

    Operating Environment

    Ambient temperature range

    0 °C to 55 °C

    Relative humidity range

    10% to 90%, noncondensing


    2,000 m (800 mbar) at 25 °C ambient temperature

    Pollution Degree


    Storage Environment

    Ambient temperature range

    -40 °C to 71 °C

    Relative humidity range

    5% to 95%, noncondensing

    Shock and Vibration

    Operational shock

    30 g peak, half-sine, 11 ms pulse

    Random vibration


    5 Hz to 500 Hz, 0.3 grms


    5 Hz to 500 Hz, 2.4 grms

    Environmental Management

    NI is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers.

    For additional environmental information, refer to the Commitment to the Environment web page at This page contains the environmental regulations and directives with which NI complies, as well as other environmental information not included in this document.

    Waste Electrical and Electronic Equipment (WEEE)
    EU Customers

    At the end of the product life cycle, all NI products must be disposed of according to local laws and regulations. For more information about how to recycle NI products in your region, visit


    National Instruments符合中国电子信息产品中限制使用某些有害物质指令(RoHS)。关于National Instruments中国RoHS合规性信息,请登录。(For information about China RoHS compliance, go to

    Environmental Standards

    This product meets the requirements of the following environmental standards for electrical equipment.

    • IEC 60068-2-1 Cold
    • IEC 60068-2-2 Dry heat
    • IEC 60068-2-78 Damp heat (steady state)
    • IEC 60068-2-64 Random operating vibration
    • IEC 60068-2-27 Operating shock
    • MIL-PRF-28800F
      • Low temperature limits for operation Class 3, for storage Class 3
      • High temperature limits for operation Class 2, for storage Class 3
      • Random vibration for non-operating Class 3
      • Shock for operating Class 2

    To verify marine approval certification for a product, refer to the product label or visit and search for the certificate.

    Safety Compliance Standards

    This product is designed to meet the requirements of the following electrical equipment safety standards for measurement, control, and laboratory use:

    • IEC 61010-1, EN 61010-1
    • UL 61010-1, CSA C22.2 No. 61010-1

    For UL and other safety certifications, refer to the product label or the Product Certifications and Declarations section.

    Electromagnetic Compatibility Standards

    This product meets the requirements of the following EMC standards for electrical equipment for measurement, control, and laboratory use:

    • EN 61326-1 (IEC 61326-1): Class A emissions; Basic immunity
    • EN 55011 (CISPR 11): Group 1, Class A emissions
    • AS/NZS CISPR 11: Group 1, Class A emissions
    • FCC 47 CFR Part 15B: Class A emissions
    • ICES-003: Class A emissions

    Group 1 equipment (per CISPR 11) is any industrial, scientific, or medical equipment that does not intentionally generate radio frequency energy for the treatment of material or inspection/analysis purposes.


    In the United States (per FCC 47 CFR), Class A equipment is intended for use in commercial, light-industrial, and heavy-industrial locations. In Europe, Canada, Australia and New Zealand (per CISPR 11) Class A equipment is intended for use only in heavy-industrial locations.

    CE Compliance

    This product meets the essential requirements of applicable European Directives, as follows:

    • 2014/30/EU; Electromagnetic Compatibility Directive (EMC)
    • 2011/65/EU; Restriction of Hazardous Substances (RoHS)

    Product Certifications and Declarations

    Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for NI products, visit, search by model number, and click the appropriate link.

    • 1 Limited performance due to PCIe bandwidth.
    • 2 If the port is not connected to an 802.1AS network, the network timebase falls back to local time.
    • 3 Each timestamp can be triggered by any PXI_Trig <0:7>.
    • 4 If no external network is available, use local time instead.

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